Feature: Two new solid brass locking air chucks. These solid brass locking air chucks are high quality hose attachments for easily inflating tires. Solid brass construction and they are precision machined for leak proof operation. Each of these air chucks feature a 45 degree angled head with a lever that locks the chuck to your valve stem and allows you to fill air easily. These chucks have a 1/4" NPT air inlet. Fitment: Fit for most infiltrators,specifically for use with tire inflator gauge,quick connect tire air chuck. .